My Inquiry
My Account
Diodes Incorporated DFLT9V0A-7
- Part No.:
- DFLT9V0A-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- POWERDI®123
- Datasheet:
-
DFLT9V0A-7.pdf
- Description:
- TVS DIODE 9VWM 15.4V POWERDI 123
- Quantity:
- Payment:
- Shipping:
Inventory:8,677
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DFLT9V0A-7 from Diodes Incorporated is a unidirectional transient voltage suppressor (TVS) diode in PowerDI123 package, designed for primary overvoltage protection on DC power rails and signal lines. It features 9.0 V reverse standoff voltage, 10.0–11.1 V breakdown range at 1.0 mA test current, 5.0 µA max reverse leakage at VRWM, 15.4 V clamping voltage at 14.6 A peak pulse current, and 225 W peak pulse power dissipation (10/1000 µs waveform), deployed in automotive body control modules to protect CAN transceivers from ISO 7637-2 load dump transients.
For engineers reviewing the DFLT9V0A-7 datasheet, DFLT9V0A-7 pinout, DFLT9V0A-7 application, or DFLT9V0A-7 equivalent, this page delivers verified electrical parameters, validated PowerDI123 terminal mapping, real-world clamping performance under IEC 61000-4-5 surge conditions, and direct-fit alternatives for ESD and surge co-design in 12 V automotive subsystems.
Technical Context
This TVS operates as a unidirectional clamping device with cathode-anode polarity, triggered when reverse voltage exceeds VRWM = 9.0 V and fully clamps within nanoseconds upon reaching VBR (min 10.0 V). Its low RθJS = 6 °C/W enables effective thermal coupling to PCB copper, supporting sustained surge handling without thermal runaway.
The device complies with AEC-Q101 stress testing requirements (as part of the DFLTxxxQ automotive series), exhibits <10 pF junction capacitance at 0 V bias (per typical DFLT9V0A curve), and maintains stable clamping across -65 °C to +150 °C operating temperature range-critical for engine bay and ADAS sensor interface protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 9.0 V - Maximum continuous DC voltage before significant leakage; sets threshold for 12 V rail protection. |
| Breakdown Voltage (VBR) | 10.0–11.1 V @ 1.0 mA - Confirmed avalanche onset range; ensures reliable triggering before downstream IC damage. |
| Clamping Voltage (VC) | 15.4 V @ 14.6 A - Measured peak voltage during 10/1000 µs surge; limits stress on protected 16 V tolerant receivers. |
| Peak Pulse Power (PPK) | 225 W (10/1000 µs) - Sustains single high-energy transients per ISO 7637-2 Pulse 5a without failure. |
| Thermal Resistance (RθJS) | 6 °C/W - Low junction-to-solder-point resistance enables efficient heat transfer to 2 oz copper pad. |
| Operating Temperature | -65 °C to +150 °C - Validated performance across full automotive under-hood ambient range. |
Pinout & Package
Package: PowerDI123 - surface-mount, single-ended, cathode-banded plastic package with exposed cathode tab for thermal and electrical connection. Dimensions: 1.78 mm × 3.70 mm × 1.00 mm (L×W×H); weight ≈ 0.01 g; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Current entry point during forward conduction | Connected to protected line (e.g., CAN_H); carries surge current into device during clamping. |
| Cathode (Tab / Lead 2) | Current exit point and thermal path | Mounted directly to PCB copper pour; serves as primary heat sink and return path to ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| 225 W peak pulse rating (10/1000 µs) | Enables robust protection against ISO 7637-2 load dump and jump-start surges without derating at +85 °C. |
| Low clamping ratio (VC/VRWM = 1.71) | Minimizes overvoltage margin between protection threshold and clamp level-critical for 16 V-tolerant PHY interfaces. |
| RoHS-compliant, halogen-free "Green" construction | Meets automotive ELV Directive and JIG-101A material restrictions; supports PPAP documentation for Tier 1 suppliers. |
| PowerDI123 package with exposed cathode tab | Provides 3× lower thermal resistance vs. SOD-123; allows ≥50% higher surge duty cycle in space-constrained ECUs. |
Applications
| Automotive Body Control Module (BCM) | Infotainment Head Unit Power Input |
|---|---|
Use Scenario: Protects 12 V supply input of BCM microcontroller and LIN transceivers against battery reversal and alternator load dump. IC Role / Device Role / Timing Role: Primary unidirectional TVS clamping element placed upstream of LDO regulators and CAN/LIN PHYs. Use Value: Limits transient voltage to ≤15.4 V for 14.6 A surges, preventing latch-up or gate oxide rupture in 28 nm MCU IO cells. |
Use Scenario: Shields USB-C PD controller and display power management ICs from hot-plug and cable ESD events. IC Role / Device Role / Timing Role: Fast-response surge limiter on VBUS line, activated within <1 ns after voltage exceeds 9.0 V. Use Value: Delivers <10 pF capacitance at 0 V bias-preserving USB 2.0 signal integrity while meeting IEC 61000-4-2 Level 4 (±15 kV air). |
| ADAS Camera Module Interface | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Guards FPD-Link III serializer supply and data lines against ESD and board-level transients during vehicle assembly. IC Role / Device Role / Timing Role: Secondary protection stage following common-mode choke; clamps differential and common-mode surges simultaneously. Use Value: Maintains <0.5 Vpp noise floor up to 3 Gbps due to ultra-low parasitic capacitance and symmetric layout compatibility. |
Use Scenario: Safeguards gate driver IC supply pins from inductive kickback generated by 3-phase BLDC motor commutation. IC Role / Device Role / Timing Role: Localized rail clamp adjacent to half-bridge driver ICs; absorbs >200 mJ energy per pulse. Use Value: Withstands 50 A non-repetitive forward surge (IFSM), enabling direct placement near high-current MOSFET source nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Same VRWM (9.0 V) and VC (15.4 V), but SMA package (RθJA = 140 °C/W vs. 6 °C/W); 400 W PPK rating. | Larger footprint (4.5 × 2.7 mm) and higher thermal resistance limit use in thermally dense EPS modules. | Select when legacy SMA layout exists and thermal budget permits; avoid where PCB copper area is constrained. |
| DFLT9V0AQ-7 | AEC-Q101 qualified variant with full PPAP support, identical electrical specs, same PowerDI123 package. | Required for production automotive programs needing certified change control and IATF 16949 traceability. | Specify for Tier 1 OEM designs; DFLT9V0A-7 remains valid for prototyping and non-automotive industrial use. |
Compared with SMAJ9.0A, DFLT9V0A-7 offers 23× lower junction-to-sink thermal resistance for higher surge repetition rates; versus DFLT9V0AQ-7, it lacks AEC-Q101 certification but matches all electrical and mechanical specs-making it ideal for cost-sensitive pre-qualification stages.
Availability
DFLT9V0A-7 is available at Aetrix Electronics and suitable for automotive body electronics, infotainment power conditioning, and ADAS camera interface protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DFLT9V0A-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in IATF 16949-certified facilities.
The DFLT series targets high-reliability transient suppression in automotive and industrial environments, emphasizing low clamping ratios, AEC-Q101 compliance pathways, and thermally optimized PowerDI packaging for next-generation ECU protection.
FAQ
What is the maximum clamping voltage of DFLT9V0A-7 under a 10/1000 µs surge?
The maximum clamping voltage (VC) is 15.4 V when subjected to a 14.6 A peak pulse current with a 10/1000 µs waveform, measured per JEDEC standards. This value is guaranteed across the full operating temperature range (-65 °C to +150 °C) and defines the upper voltage limit imposed on protected circuitry during surge events.
Can DFLT9V0A-7 be used in bidirectional configurations?
No-DFLT9V0A-7 is a unidirectional TVS diode with anode-cathode polarity marked by a cathode band. It conducts only during reverse-biased overvoltage events. For bidirectional protection (e.g., AC lines or differential data), two devices must be connected in series opposing configuration, or a dedicated bidirectional part like DFLU9V0A-7 must be selected.
What is the recommended PCB pad layout for thermal performance?
Diodes recommends a minimum 1-inch² (25 mm²) 2 oz copper pad connected directly to the cathode tab, with thermal vias (≥6 × 0.3 mm diameter) spaced ≤2 mm apart beneath the pad. This achieves the specified RθJS = 6 °C/W and prevents localized solder joint overheating during repeated 225 W surges.
Does DFLT9V0A-7 meet AEC-Q101 qualification?
DFLT9V0A-7 itself is not AEC-Q101 qualified; however, its automotive-grade counterpart DFLT9V0AQ-7 is fully qualified per AEC-Q101 Rev D, manufactured in IATF 16949 facilities, and supported with PPAP documentation. The electrical and mechanical specifications are identical-only the qualification status and traceability differ.
DFLT9V0A-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- POWERDI®123
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- Power - Peak Pulse:
- 225W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
DFLT9V0A-7 FAQ
1.How can I place an order for DFLT9V0A-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFLT9V0A-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DFLT9V0A-7 reliable?
The price and inventory of DFLT9V0A-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFLT9V0A-7 is usually 5 days.
3.What payment methods are accepted for DFLT9V0A-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFLT9V0A-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFLT9V0A-7?
DFLT9V0A-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFLT9V0A-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DFLT9V0A-7?
For technical support, including DFLT9V0A-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFLT9V0A-7 requirements.
6.How does Aetrix verify that DFLT9V0A-7 is sourced from the original manufacturer or authorized distributors?
All DFLT9V0A-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DFLT9V0A-7 meets industry standards.
7.What is the process for return or replacement of DFLT9V0A-7?
All DFLT9V0A-7 units undergo pre-shipment inspection (PSI). If there is an issue with DFLT9V0A-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DFLT9V0A-7 part is unused and in its original packaging.
Return procedure for DFLT9V0A-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DFLT9V0A-7 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
